August weather in James Island, SC
The average temperature in James Island in August is 81.4°F (76.5°F–86.4°F). Average precipitation: 6.11 inches.
August is a summer month in James Island, and is warmer than the annual average of 67.2°F. Daily temperatures swing about 9.9°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 13m. For travel, August is a wet month.
Avg High
86.4°F
Avg Low
76.5°F
Precipitation
6.11 in
Daylight
13h 13m
August records in James Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1999) | 68.0°F (1936) | 2.20 in (1894) |
| August 2 | 97.0°F (1953) | 70.0°F (1922) | 3.41 in (1906) |
| August 3 | 98.1°F (1899) | 68.0°F (1922) | 2.60 in (1917) |
| August 4 | 100.0°F (1899) | 66.0°F (1912) | 3.27 in (1961) |
| August 5 | 102.0°F (1954) | 64.9°F (1912) | 3.71 in (1941) |
| August 6 | 99.0°F (1899) | 66.0°F (1939) | 3.56 in (2024) |
| August 7 | 97.0°F (1899) | 68.0°F (2004) | 2.46 in (1990) |
| August 8 | 98.1°F (1968) | 68.0°F (1989) | 2.96 in (1974) |
| August 9 | 96.1°F (1900) | 66.9°F (1989) | 1.68 in (1985) |
| August 10 | 97.0°F (1906) | 66.9°F (1989) | 2.93 in (1927) |
| August 11 | 97.0°F (1954) | 66.9°F (1989) | 7.66 in (1940) |
| August 12 | 98.1°F (1998) | 66.0°F (1967) | 2.52 in (2004) |
| August 13 | 98.1°F (1913) | 64.0°F (1967) | 2.05 in (1950) |
| August 14 | 102.0°F (1925) | 64.9°F (1967) | 4.68 in (1986) |
| August 15 | 99.0°F (1918) | 66.0°F (2013) | 3.65 in (2010) |
| August 16 | 97.0°F (1954) | 68.0°F (1894) | 2.42 in (2023) |
| August 17 | 100.0°F (1954) | 70.0°F (1899) | 5.57 in (1945) |
| August 18 | 97.0°F (1944) | 66.9°F (1979) | 6.08 in (1935) |
| August 19 | 98.1°F (1895) | 66.9°F (1976) | 5.39 in (1981) |
| August 20 | 99.0°F (1902) | 66.0°F (1943) | 3.26 in (1949) |
| August 21 | 99.0°F (1900) | 66.0°F (1930) | 2.56 in (1941) |
| August 22 | 98.1°F (1983) | 64.9°F (1930) | 4.10 in (2025) |
| August 23 | 98.1°F (2014) | 62.1°F (1930) | 3.95 in (2025) |
| August 24 | 99.0°F (1938) | 63.0°F (1931) | 5.05 in (1970) |
| August 25 | 96.1°F (1915) | 64.0°F (1957) | 2.26 in (1939) |
| August 26 | 96.1°F (1936) | 63.0°F (1942) | 2.39 in (1963) |
| August 27 | 97.0°F (1903) | 63.0°F (1942) | 2.67 in (1911) |
| August 28 | 98.1°F (1903) | 62.1°F (1904) | 3.82 in (2012) |
| August 29 | 97.0°F (1903) | 59.0°F (1986) | 4.59 in (2004) |
| August 30 | 95.0°F (1912) | 61.0°F (1986) | 3.75 in (1910) |
| August 31 | 97.0°F (1912) | 64.0°F (1934) | 2.83 in (1987) |